Experimental method, types of ecperiments -psyc

DV

The variable that is measured. Change in DV should be caused by change in IV.

IV

Same aspect of the experimental that is manipulated (or changes naturally) in order to measure the effect of the DV

Lab

An experiment that takes place in a controlled environment (not always a lab) with in which the researcher deliberately changed the IV and records the effect of the DV, whilst maintaining strict control of the extraneous variables

Field

An experiment that takes place in a natural setting within which the researcher deliberately changes the IV and records the effect of the DV.

Natural

The researcher doesn’t change the IV the change occurs naturally. The researcher records the change to the DV.

Quasi

Almost an experiment, but the IV is not determined by the researcher they simply exist. E.g being young, old or being a taxi driver or not etc strictly speaking not an experiment as IV is a pre-existing characteristic.